Adjustable reflector for electric lamps.



H. HUBBELL.

ADJUSTABLE REFLECTOR. FOR ELECTRIC LAMPS.

APYLIOATION FILED FEB. 25, 1910.

Patented July 19, 1910.

WITNESSES:

ATTORNEY ARVEY HUBBELL, or BRIDGEPORT, CONNECTICUT.

ADJUSTABLE REFLECTOR FOR ELECTRIC LAMPS.

Specification of Letters Patent.

Patented July 19, 1910.

Application filed February 25, 1810. Serial No. 545,894.

To all whom it may cancer-m Be it known that I, HARVEYHUBBELL, a citizen I ofthe United States, residing at Bridgeport, county of Fairfield, State of- Connecticut, have invented an Improvement Adjustable Reflectors for Electric Lamps,

c which the following is a specification.

This invention has for its object to pro- 'vide an adjustable reflector which'may be of connection. The end of the neck is without solder.

easily and quickly attached to orremoved from standard electric lamps and may be rotated to throw thelight in any direction as may be required.

With these ends in view I have devised the novel reflector and means for attaching the same in place which I 'will now describe,

referring to the accompanying drawing "forming a part of this specification an using reference characters to indicate the several parts.

Figure 1 is an elevation partly broken away showing my novel reflector in lace upon a standard electric lamp socket; ig. 2 a view on an enlarged scale partly in elevation and partly in section of the attaching rin detached; Fi neck detac ed; and Fi 4 is an elevation of the contractile collar etached.

1() denotes an electric lamp, l1 a'standard socketand 12 a reflector. The reflector is provided with a hole 13 through which the attaching end of a lamp bulb ma be passed and in which the neck 14 is rigidly secured. This neck, which may be formed in any preferred manner as from sheet metal by press work, is shown as secured to the reflector Anexternal rib 15 is formed near the upper end of the neck, the plane of the rib corresponding with the superficial plane of the reflector at the poin;

asse through the hole in the reflector an then the parts are secured together by turning the upper edge of the neck outward and closing 45 it.

own upon the inner side of the reflector as at 16. The neck is provided at its lower end with a circumferential external rib 17 which may be formed, as shown in the drawg, by bending the metal outward, then downward and then inward.

18 denotes an attaching ring which is mounted to rotate on the clrcular rib and is rovided with aninner threaded sleeve 19. This attaching rim is formed from sheet metal to substantially the shape shown in 3 a similar view of the re ector' cross section in Fig. 2. In addition to the threaded sleeve there is a bottom wall 20 and an outer wall 21, the three walls comprising a substantially U-shaped ring in .cross section. The clrcular external rib 17 of the neck is received between the threaded sleeve and the outer wall of the attaching rlng, said circular rib fitting within the at taching ring loosely and the attaching ring is secured to the rib by closing the upper edge of outer wall 21 over the top of the --rib', as at 22 in Fig. l, leavingthe attaching rin free to rotate on the circular rib.

t is of course well understood that all standard electric lamp sockets are provided near the lamp receiving end with an external rib 23. This rib I utilize in attaching the adjustable reflector to the socket by means of a contractile collar 24 which is divided vertlcally across as at 25, is provided with an internal groove 26 to receive the rib on the socket shell and below the groove with a screw thread 27 which is adapted to be engaged by the threadedsleeve of the attachmg ring.

The operation will be obvious from the drawing. The attaching ring is' permanently attached to the neck, the neck and rin being adapted to rotate relatively to eac other and the neck is rigidly attached to the reflector. In attaching the reflector to a lamp, the contractile collar is placed on the socket, the collar readily springing to allow the rib on the socket to pass into the groove in the collar, and then the threaded sleeve of the att'achin ring is turned into engagement with the t read of the con tractile collar, thus firmly but detachably securing the adjustable reflector to the socket.

Having thus described my invention I claim:

1. A reflector having an opening for the passage of a lamp bulb, a neck having one end bent over into engagement with the edge of said opening, and an attaching ring for a lamp socket rotatably mounted on the other end of said neck.

2. A reflector having an opening for the passage of a lamp bulb, a neck having one end bent over into engagement with the edge of said opening, the other end of said neck being provided with a circular rib, and an attaching ring for a lamp socket rotatably mounted on said rib.

3. A rflectorhaving an o'peningdo the passage of a lamp bulb, a neck having one end bent over into engagement with t'he'edge of said opening, the other end of said neck being provided with a circular rib, and an attaching ring for a lamp socket rotatably mounted on .said rib, said attaching ring being provided with an internal threaded. sleeve.

A. A reflector havin an opening for the passage of a lamp'bulb, a neck having one end bent over into engagement With the edge of said opening, the other end of said neck being provided With a. circular rib, and an attaching ring for a lamp socket rotatably mounted on said rib, said attaching ring being provided with an internal threaded sleeve, and adcontractile collar adapted to engage a lamp socket and having a threaded I portion adapted to engage said threaded sleeve. I v i 5. A reflector having an opening for the passage of a lamp bulb, a neck having one end bent overinto engagement With the edge of saidopening, the other end of said neck being provided With an external annular rib, an attaching ring into which the ribbed end of said neck fits, said ring having a flange extending over said. rib, whereby said ring .1 i ,w; A q is'rotata. 1 supports 1-1 111 has carried by said ring for snoporting lamp socket.

3 65A reflector- OVlolGciiVlih an opening for the passage of lamp bulb, and a nee extending ironrsa'idbpening, an attaching ring rotatably mounted on the free end of 3 said neck and provided wi h an. internal Ithrcaded sleeve,- and a contractile collar annular groove to receive a bead onalamp socket, and having a threaded portion to' enga e said threaded sleeve. a in testimony whereofafiix mysignaturein presence ottivo Witnesses. HARVEY HUBBELL.

Witnesses: a v a A. M. Woos'raiz, S. W. ATHERTON. 

